Tun-d Free Guitar Tuner is a dead simple, rock solid guitar and stringed instrument tuner. You will love its hands-free operation and its big, bright, and stable display. There is no fluff in this app, just the best and easiest to use electronic tuner available. This includes standard, chromatic, and alternate tuning presets for guitar. You’ll also find presets for banjo, ukulele, mandolin, violin, viola, cello ,and more. This is an ad-supported version of the full Tun-d Guitar Tuner app, which is also available on the Amazon Appstore.